Ventilator.



Patented Sept/l6; I902.

J. W. MAUS.

VENTILATOH.

(Application filed June 14, 1900.)

(No Model.)

NITED STATES ATENT FFIGE.

' JAMES WM. MAUS, OF PACIFIC JUNCTION, IOWA.

VENTILATO R.

SPECIFICATION forming part of Letters Patent No. 709,230, dated September 16, 1902.

Application filed June 14, 1900. $e1'ial No. 20,311. (No model.)

To all whom, it may concern:

Beit knownthat I, JAMES WM. MAUS, a citizen of the United States, residing at Pacific Junction, in the county of Mills and State of Iowa, have invented a new and useful Ventilator, of which the following is a specification.

This invention relates to ventilators, and has for its object to provide an improved device of this character which is especially designed for application to window-sashes, so as to conveniently and effectively ventilate rooms, cars, and the'like.

Itis furthermore designed to provide a device which is complete in itself, so that it may be conveniently applied to a window-sash without alteringor changing the latter beyond forming an inclined opening in the framethereof for the reception of the device and to arrange the latter for convenient manipulation, so as to have the device com pletely under control to adjust the size of the ventilating-opening.

With these and other objects in view the present invention consists in the combination and arrangement of parts, as will be hereinafter more fully described, shown in the accompanyingdrawings, and particularly pointed out in the appended claim, it being understood that changes in the form, proportion, size,and rninordetails may be made within the scope of the claim without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawings, Figure l is a sectional perspective View of one corner of a window-sash having the improved ventilator applied thereto. Fig. 2 is an elevation of the outer side of the sash. Fig. 3 is a transverse sectional View taken on the line 3 3 of Fig. 2.

Corresponding parts are designated by like characters of reference in all of the figures of the drawings.

In the drawings, 1 designates an ordinary window-sash, the upper end rail of which is provided with a longitudinal slot or opening 2, which opens for its entire length at the inner and outer sides of the sash for the reception of the ventilator-proper.

The frame of the ventilator is in the form of an open-ended substantially rectangular metallic box 3, which fits snugly within the opening formed in the frame of the windowsash. The opposite edges of the box are flush with the adjacent faces of the sash and the box is held in place by means of marginal strips 4, secured to the sash by means of suitable fastenings 5, said strips overlapping the adjacent edges of the box to prevent accidental displacement thereof, but not extending beyond the line of the inner face of the box, so as to prevent he accumulation of water therein. The outer open side of the box is covered by means of a screen 6, of some suitable foraminous material, the edges of which are clamped between the marginal strips and the adjacent sides of the sash, whereby the screen is conveniently held in place and is designed to exclude insects, dust, &c. The lower and upper walls of the box are slightly inclined, so that any Water which may be driven therein may flow to the outer wall of the sash. Located within the box is a rectangular damper-plate 7, the opposite ends of which are provided with the longitudinally-aimed pivotpins or journals 8, which are arranged adjacent to the upper edge of the plate and are pivotally received within suitable perforations 9, formed in the ends of the box, so that the damper-plate will rock downwardly by gravity to normally close the ventilating-openingin-the sash. The damper-plate is at all times wholly within the box or casing and is inclined in such manner as to shed the water. To manipulate the damper-plate, there is provided a link 10, which is located at one end of the plate and has its innerend received between the members of a bifurcated lugor projection 11, cast integral with the inner side of the plate and loosely connected thereto by means of asuitable transverse pivot-pin 12, so that the link may swing vertically. In the under longitudinal edge of the link there is provided aplurality of notches or teeth 13, designed for engagement with an upstanding rib or keeper ll, cast integral \vilh the upper face of the lower side of the box, whereby the damperplate may be held at various angles to vary the size of the ventilating-opening. The free end of the link projects a suitable distance beyond the inner side of the sash and is provided with a loop or eve 15 to form a fingerpiece for operating the link. By having the linger-piece loop-shaped a stick or other de- IOC vice may be engaged therewith, so as to adjust the damper-plate from the floor, as the device is preferably placed in the upper end rail of the upper sash, although it may be placed in the lower end rail or the side rails of the sash. Should it be desired to have the window-sashes pass each other, the damperoperating link or lever may be shortened or completely housed within the boxing.

What is claimed is As a new article of manufacture, a windowsash ventilator comprising a box or casing 3 having open sides and inclined top and bottom Walls adapted to extend entirely through an openingin a sash and rest flushwith the inner and on tersurfaces thereof,separable secu ring-flanges 4 adapted to engage with the edges of the top and bottom and end walls to hold the box from lateral movement, the edges of said flanges being level or flush with the inner surfaces of the box or casing to permit the free flow of waterfrom the interior of the box, a foraminous shield 6 secured over the outer open side of the box by one of the flanges, a damper-plate 7 having longitudinally-alined pivot-pins orjournals 8 arranged adjacent to the upper edge of the plate, there being perforations or recesses 9 formed in the end walls of the box for the reception of said pivot-pins, said damper being situated wholly within the box and when in closed position being inclined in the same direction but at a greater angle to the horizontal than the bottom wall of the casing and adapted to shed water, the lower edge of said damperwhen closed being in intimate contact with the lower wall of the casing to prevent the passage of water, an adjustable handle hinged to the damper and provided on its underside with a series of notches, and a keeper carried by the lower wall of the casing and adapted to engage in said notches, substantially as specified.

In testimony that I claim the foregoing as my own I have hereto aflixed my signature in the presence of two witnesses.

JAMES WM. MAUS.

Witnesses:

GEo. W. SHREVE, ED. OoMroRT. 

